With dual drivers, dedicated DACs, lossless audio and improved adaptive noise cancellation, the OPPO Enco X4 prioritises sound quality , although its best features remain tied to the brand’s ecosystem.
OPPO’s Enco X4 enters a crowded premium earbuds market with a clear point of difference: it is built around sound rather than features for their own sake. According to OPPO’s announcement, the earbuds use a dual-driver acoustic system with an 11mm TRF diaphragm woofer and a 6mm planar diaphragm tweeter, each with its own DAC, and the company says the model is co-tuned with Dynaudio for a more natural presentation. It also supports LHDC Lossless transmission at up to 2.3Mbps, with 24-bit/48kHz playback, and carries Hi-Res Audio Wireless certification. For listeners who care about musical texture, separation and tonal balance, that is a more serious specification sheet than the usual marketing language around wireless audio.
The tuning appears to be the strongest reason to consider the Enco X4. OPPO says it offers five Dynaudio sound profiles, including Original Sound, High-Resolution, Pure Vocals, Clear Treble and Surging Bass, while the review that accompanied the launch argues that the default profile is the most convincing because it keeps the response balanced and avoids pushing any part of the spectrum too hard. That matters because the design is not trying to impress through exaggerated bass or artificial brightness. Instead, the claim is that the woofer and tweeter division of labour allows low frequencies to carry weight without muddying the midrange, while the planar driver adds air and detail to the top end.
Noise cancellation is another area where the Enco X4 seems to have moved the line forward. OPPO describes the system as AI Adaptive ANC, and the review says the implementation is substantially stronger than in previous Enco models, particularly when dealing with speech and other mid-frequency noise that many earbuds still struggle to suppress. The same review notes that OPPO uses multiple microphones, a 6nm NPU and adaptive scene recognition to adjust cancellation in different environments. That suggests the earbuds are intended to handle more than commuter drone, with a stronger focus on office noise, public transport and conversation-heavy settings.
The feature set is broad, but it is also uneven across platforms. OPPO highlights AI Live Translation and Google Gemini integration among the smart functions, while the review says several of the most interesting extras are best used on OPPO or OnePlus phones. That includes lossless playback on compatible Find X devices and certain ecosystem features that are tied to ColorOS. In practical terms, the Enco X4 looks most complete inside OPPO’s own hardware family, whereas iPhone users and many other Android owners will still get the core audio benefits but not the full package.
Battery life is respectable on paper, though the headline numbers depend on how the earbuds are used. OPPO says the Enco X4 can deliver up to 13 hours on the earbuds alone and up to 53 hours with the charging case, but the review points out that these figures are measured with ANC switched off. With noise cancellation active, the endurance drops sharply, which is typical for the category but still important for anyone who expects all-day use with the full feature set enabled. The product is available in Glacier White and Aurora Violet, with Bluetooth 6.1 support and a compact form factor that is aimed at everyday portability rather than rugged use.
Taken as a whole, the Enco X4 appears to be a well-judged flagship earbud for listeners who value audio quality above everything else. The combination of dual drivers, dedicated DACs, Dynaudio tuning and lossless support gives it a more credible acoustic story than many rivals in the same price tier. The trade-off is familiar: the best version of the product is one used with OPPO’s own phones, and some of the most attractive functions remain locked to that ecosystem. Even so, for buyers already invested in OPPO or OnePlus hardware, the Enco X4 looks like one of the brand’s most convincing audio products so far.
Disclaimer: This content is intended for informational purposes only. Readers are advised to exercise their own judgement, conduct due diligence, or consult a qualified expert before acting on any information provided.
